I've bought two watches on iOffer... and that was two too many. The first was a U-boat Classico and it was NOTHING like what was pictured. When I finally got it and realized, the seller had disappeared (I think this happens often: look at how long they have been members, many have been for less than 30 days). Then, a little while back, I bought an automatic Panerai with a GMT hand. The GMT hand took nearly three days to travel 360 degrees and the replica is no where close to what it should be. Luckily, I got that one handled and got my money back.
IMO, if you want a quality replica, order from one of the sellers on this forum. If they don't have the model you want, chances are quality reps of that model are few and far between. I learned the hard way and unfortunately it took two experiences and a lot of headache but I did learn and I will never buy a watch on iOffer again.